摘要
本文对比研究了处于不同生境的油蒿群落中油蒿的水分生理生态特性。结果表明：（１）半固定沙丘的油蒿比固定沙丘油蒿长势好，前者的生物量约为后者的４－５倍；（２）半固定沙丘土壤导水率是固定沙丘的１０倍左右；（３）叶温与气温之差和水势能较好地反映油蒿的生长状况，而蒸腾速率与扩散阻力反映不十分敏感。
This paper is concentrated on the comparative study of the ecophysiolo-gical characteristics of the Artemisia ordosica communities in different soil types.Our results show that 1.The shrub growing in the dune community is in an better growth potential than that in the fixed dune community.The biomass of the dune community is about 4-5 times that of the fixed dune community;2.The soil water conductivity of the dune community is up to 10 times that of the fixed dune community;3.Water potential and the diff-erence between leaf and cuvette temperature can be used as indicators of the growth regime of Artemisia ordosica,whereas transpiration rate and diffusive resistance are less sensitive.
出处
《植物生态学报》
CAS
CSCD
北大核心
1994年第2期161-170,共10页
Chinese Journal of Plant Ecology
基金
国家自然科学基金
关键词
油蒿
群落
土壤导水率
蒸腾速率
Aremisia ordosica community
Soil water conductivity
Transpiration rate
Temperature difference
Leaf water potential
